In this article, we present our institution's MR imaging protocol for evaluation of suspected appendicitis in the pregnant patient and illustrate the MR imaging appearance of both the normal appendix and spectrum of appearances of acute appendicitis seen in pregnancy.

Patients: A retrospective chart review was carried out on patients who underwent SILA for acute appendicitis from June 2012 to August 2015 at the Ehime Rosai Hospital in Niihama, Japan and Saiseikai Shimonoseki General Hospital in Shimonoseki, Japan.

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